Discrete CH···N Bonded Patterns Modified by Temperature and Pressure in Four Pyrazine Polymorphs
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https://figshare.com/articles/dataset/Discrete_CH_N_Bonded_Patterns_Modified_by_Temperature_and_Pressure_in_Four_Pyrazine_Polymorphs/2104018
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Pyrazine molecules aggregate by remarkably similar CH···N hydrogen bonds into four polymorphs. Of eight CH···N bonds to each molecule, six H-bonds are very similar for all pyrazine structures. A diagram of four crystalline phases has been outlined and their low-temperature and high-pressure structures determined. Phase I is metastable and occurs only within the ambient-pressure region of phase II.
创建时间：
2016-02-12
